Q: What are the prime factors of the number 131,211,344?

 A: 2, 11, 31, 24049

Why are those the prime factors of the number 131,211,344?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 131,211,344

131,211,344
Factor Arrows
265,605,672
Factor Arrows
232,802,836
Factor Arrows
216,401,418
Factor Arrows
28,200,709
Factor Arrows
11745,519
Factor Arrows
3124,049

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 11, 31, 24049

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 31 x 24,049 = 131,211,344

This can also be written as 24 x 111 x 311 x 24,0491 = 131,211,344

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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